光电管,光电元件

light cell的用法和样例:

例句

  1. The photoelectric cell controls a servomotor.该光电管控制着一个伺服电动机。

Lesson 6 Red light runners Text: The San Francisco department of traffic is installing cameras at street intersections. The cameras take pictures of cars running red lights. Each camera captures eighty to one hundred cars running red lights a day. Ru

发表于:2018-11-27 / 阅读(979) / 评论(0) 分类 赖世雄学英语第二册

By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The

发表于:2018-12-01 / 阅读(168) / 评论(0) 分类 VOA2003(下)-环境与健康

Bacteria Discovered To Recharge Cell Phone A microbe called Rhodoferax Ferrireducens,found in the mud at Oyster Bay,Virginia,has been discovered to transfer electrons directly onto an electrode

发表于:2018-12-18 / 阅读(115) / 评论(0) 分类 有声杂志阅读

For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea

发表于:2018-12-30 / 阅读(148) / 评论(0) 分类 国家地理2008年

After hundreds of years, the most common, basic microscopes still operate by means of the same old hardware: the lens. But what if you could do away with that lens and create a microscope that fits on a cell phone? Thats what researchers led by Aydog

发表于:2019-01-02 / 阅读(86) / 评论(0) 分类 60秒科学

The big dream for neuroscientists is to be able to watch our brain cells in action, in real time. Well, new research has maybe found the most promising tool yeta technique to watch individual neurons light up in response to a stimulus, like flipping

发表于:2019-01-02 / 阅读(179) / 评论(0) 分类 60秒科学

This is Scientific American's 60-Second Science, I am Cynthia Graber. This'll just take a minute. Imagine tweezers so fine that you could reach right into a cell and manipulate individual molecules. MIT researchers have created such a tweezer, using

发表于:2019-01-08 / 阅读(110) / 评论(0) 分类 Scientific American(七)月

After hundreds of years, the most common, basic microscopes still operate by means of the same old hardware: the lens. But what if you could do away with that lens and create a microscope that fits on a cell phone? Thats what researchers led by Aydog

发表于:2019-01-08 / 阅读(132) / 评论(0) 分类 Scientific American(六)月

The big dream for neuroscientists is to be able to watch our brain cells in action, in real time. Well, new research has maybe found the most promising tool yeta technique to watch individual neurons light up in response to a stimulus, like flipping

发表于:2019-01-08 / 阅读(110) / 评论(0) 分类 Scientific American(五)月

By Carol Pearson Washington 25 September 2007 A lot of people wonder about the impact cell phones might have on their health. And now a new study shows that heavy mobile, or cell, phone use may result in hearing loss. VOA's Carol Pearson reports. As

发表于:2019-01-11 / 阅读(133) / 评论(0) 分类 2007年VOA标准英语(九月)

Large Windows Could Capture Solar Energy 利用大窗户吸收太阳能 Solar cells have been around since the 1950s. But now there is a race to develop transparent solar cell that can cover windows of buildings and still capture the suns light for e

发表于:2019-01-12 / 阅读(131) / 评论(0) 分类 2016年VOA慢速英语(八)月

By Bill Rodgers Washington 19 May 2008 Cell phones are an example of what is sometimes now called leapfrog technology, a product that allows developing nations the benefits of a reliable and extensive communications network without the heavy investme

发表于:2019-01-13 / 阅读(104) / 评论(0) 分类 VOA标准英语2008年(五月)

By Victoria Cavaliere New York 16 October 2007 An annual stem cell research conference in New York has been bringing together some of the field's top scientists to discuss breakthroughs in stem cell research and what proponents call its long-term app

发表于:2019-01-31 / 阅读(125) / 评论(0) 分类 2007年VOA常速英语(十月)

By Paul Sisco Washington 17 April 2008 Federal regulators in Washington have approved plans to upgrade the nation's Emergency Alert System to include text messages to cellphones and other mobile devices. VOA's Paul Sisco has more in this Searching fo

发表于:2019-01-31 / 阅读(125) / 评论(0) 分类 VOA常速英语2008年(四月)

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(250) / 评论(0) 分类 英语新闻

Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte

发表于:2019-02-07 / 阅读(231) / 评论(0) 分类 趣味英语

By Jessica Berman Washington 19 December 2007 Stem cell research was the major medical and science story this past year, topping the list of achievements that experts say might finally lead to cures for many diseases. Meanwhile, global health officia

发表于:2019-02-17 / 阅读(137) / 评论(0) 分类 VOA常速英语2007年(十二月)

WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi

发表于:2019-02-18 / 阅读(180) / 评论(0) 分类 英语新闻

Why You Shouldn't Leave Nude Photos of Yourself on Your Cell Phone The 23-year-old woman lost her cell phone in a restaurant parking lot. By the next morning, someone was texting nude photos of her to everyone. As regular readers have learned many ti

发表于:2019-02-24 / 阅读(125) / 评论(0) 分类 阅读空间

What was actually interesting to us was not that the bacteria made light, but when the bacteria made light. 事实上,我们感兴趣的部分并不是细菌会不会发光,而是细菌何时发光。 What we noticed is when the bacteria were alo

发表于:2019-03-04 / 阅读(163) / 评论(0) 分类 TED演讲教育篇
学英语单词
accountable officer
acini renalis
algicidal
anhydrous dextrose
appointed bank
artificial anterior teeth
baalshem
beezies
benigner
Beta vulgaris rubra
bibliomancy
biduous
Birbhum
bruchidaes
cancer of liver
carbon-electrode
Castelo Branco, Dist.
cathode ray oscillograph tube
Changam-ri
cheat sheet
christes
Chung-tu
CKI-7
coffered
consuetudinal
critical realism
Cybersecurity Act
dark spot defect of led
di-n-octyl-2-oxo-propanphosphonate
dorso-abdominal sulcus
driven link
drosera lunata buch.
edible viscera
financial self-sufficiency
fire tube
foxtrotting
genus tomistomas
george wither
heterogenia
hold at arm's length
horizon migration
horizontal sweep amplifier
HTK
input-output curve
inverse neutral telegraph transmission
irradiated fuel store
joiner bulkhead
juvenile mantle
killer detector-amplifier
levoicomer
Magadan
manipulability
mode hopping effect
nicotins
nonapple
obligatory transformation
obliterative cardiomyopathy
offical selling price
offspin
ohmanns
OPCOM
orientin
oscillating bar
packing-leakage
paranasal sinuses
permatemps
pixel stream
power modulation factor
propaesin
pulse type
qintar
quantity of wastewater effluent
remondite-(Ce)
resaturations
rigidity of nape and headache
rpbs
SAW device
saw-tooth output
scymitar-shaped
second-derivative map
Selongey
sheera
sheick
shield budding
Smilax china non L.
socio-economically
St-Ignace, I.
standard staging
stockleys
superconducting temperature
superimposed pattern
sympathoexcitatory
temporomandibular joint dysfunction
three-component refiner
tillot
to guarantee
truck schedule
tubulovesicular
unrepined
vocalics
waste chemistry
weston